198107930 has 8 divisors (see below), whose sum is σ = 356594292. Its totient is φ = 79243168.

The previous prime is 198107929. The next prime is 198107957. The reversal of 198107930 is 39701891.

It can be written as a sum of positive squares in 2 ways, for example, as 197430601 + 677329 = 14051^2 + 823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9905387 + ... + 9905406.

Almost surely, 2^198107930 is an apocalyptic number.

198107930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198107930 is a deficient number, since it is larger than the sum of its proper divisors (158486362).

198107930 is a wasteful number, since it uses less digits than its factorization.

198107930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19810800.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 198107930 is about 14075.0818825327. The cubic root of 198107930 is about 582.9535527058.

The spelling of 198107930 in words is "one hundred ninety-eight million, one hundred seven thousand, nine hundred thirty".